Overview: Welfare assessment for grouper species farmed intensively in cage and pond systems across Southeast Asia.
Key Welfare Facts
Grouper are high-value carnivorous fish farmed extensively in open-water cages across Southeast Asia.
Many grouper species are still sourced from wild caught juveniles, as captive breeding is technically difficult.
Wild capture of juvenile grouper using destructive fishing methods including cyanide causes severe welfare compromise.
Grouper are solitary territorial fish that show significant aggression and stress in high-density cage systems.
Viral nervous necrosis is the primary disease challenge, causing mass mortality and severe neurological suffering.
Live trade of grouper to restaurants represents extended welfare compromise during holding and transport.
Welfare Assessment
Grouper welfare is compromised throughout the production chain from wild juvenile capture to live-trade transport. Supporting captive-bred grouper from welfare-certified sources reduces reliance on destructive juvenile capture methods.
What You Can Do
Choose grouper products from farms using captive-bred stock rather than wild-caught juveniles
Avoid restaurants offering live grouper that have been held under poor conditions
Support international campaigns against cyanide fishing for aquaculture juvenile supply
Advocate for welfare-focused aquaculture certification to include grouper supply chains